TY  - BOOK
AU  - Kokotovic P
AU  -  Bensoussan A
TI  - Singular perturbations and asymptotic analysis in control systems
T2  - Lecture notes in control and information sciences; 90
U1  - B28931, M7 
PY  - 1987///
CY  - Berlin
PB  - Springer-verlag         
KW  - Perturbation
ER  -